text: var playerContainer_;
  var player_ = null;
  var playerUI_ = null;
  
  window.onload = function () {
    playerContainer_ = document.getElementById('player-container');
    // build player
    player_ = new voPlayer.Player(playerContainer_);
    player_.addPlugin(voPlayer.voAnalyticsPlugin);
    player_.addPlugin(voPlayer.voVttThumbnailPlugin);
    player_.init(common_config);
  
    // attach ui engine
    playerUI_ = new voPlayer.UIEngine(player_);
    playerUI_.buildUI();
  
    player_.open(Webvtt_Thumbnail_stream);
  };
  